The Russian-run Hmeimim air base in the northwestern Syrian province of Latakia responded to “unknown targets” fired by rebels earlier on Wednesday, a war monitor reported.
Several explosions were heard in the city of Jableh in the countryside of Latakia as a result of the Russian base’s fire, according to the Syrian Observatory for Human Rights.
The watchdog group said it is not yet clear whether the targets were drones and shells fired by the rebels in the northwestern province of Idlib.
No reports on losses emerged yet, said the Observatory.
The attack is the latest to target the base by the rebels in the nearby areas in Idlib.
Hmeimim air base has been the target of Syrian rebels’ drones, which are usually flown from the nearby rebel-held Idlib Province in northwestern Syria.
The legal status of the base is regulated by a treaty signed by Russia and Syria in August 2015. At the end of 2017, Russia said that it had decided to turn the base into a component of its permanent military contingent stationed in Syria.